Carbureter



No. 622,008. Patented Mar. 28, I899; c. M. KEMP.

CARBUBETER.

(Application filed Sept. 24, 1897.)

(No Model.)

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llNrrEn STATES v PATENT Fries.

CLARENCE M. KEMP, OF BALTIMORE, MARYLAND.

CARBURETER.

SPECIFICATION forming part bf Letters Patent N 0. 622,008, dated March28, 1899.

I Application filed September 24, 1897. Serial No. 652,926. (No model.)

To all whom it may concern.-

Be it known that I, CLARENCE M. KEMP, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Air Gas Machines, of which the followingis a speci fication.

This invention relates to an improved apparatus for combiningatmospheric air and the vapor of a hydrocarbon liquid in definite orpredetermined proportions in order to produce a gas of uniform quality.

The object of the invention is to provide an apparatus for making gasfrom hydrocarbon liquids that will satisfy the requirements offire-insurance companies and which therefore may be used on insuredpremises.

It is essential in such apparatus that the storage or supply of gasoleneshall be kept in a closed tank underground, where the temperature isuniformly cool, that in feeding measured quantities of gasolene from thesaid supply-tank to the air-mixer there shall be no exposure of thegasolene to the atmosphere and no opportunity for the volatilization ofthe gasolene, and that measured gasolene in liquid form and measured airin definite proportions shall be delivered to the mixer under conditionsinsuring absolute safety from fire or explosion. I have provided theapparatus which is the subject of the present invention.

This invention is illustrated in the accompanying drawings, in which--Figure 1 shows an elevation, partly in side view and partly in section,of the improved air-gas apparatus. Fig. 2 is a detail view showing thepump.

The letter A designates a gasolene-storage tank underground, the line adenoting the ground-surface. It is not convenient in the drawings toillustrate on one sheet the entire apparatus and have each part on asufficiently To accomplish these ends,

gasolene. A small box or pipe 0 to hold but a small amount of gasoleneand which acts as an intermediate supply-tank is sunk in the ground on alevel with the main tank and is connected through a pipe D with thegasolenestorage tank A, at or near the bottom of same, and by gravity ornatural flow maintains the gasolene in the box 0 at same level it has inthe storage tank A. A double cylindered gasolene-pump c c is placed inthe box 0. This pump is secured to the cap-plate 0 which is attached toand covers the top of the box or tank 0. By this construction theunderground tank 0 need not be removed whenever it is necessary toremove the pump. All that is required is to detach the cap-plate, theremoval of which carries with it the pumpcylinder. A small pipe d leadsfrom the gasolene-pump to the mixer or carbureter E. The construction issuch thatthe pumpc 0 will force the liquid gasolene to the carbureterwithout any exposure of the gasolene to the atmosphere in its flow fromthe tank A to the carbureter and without possibility of the gaso lenebeing volatilized in transition, and the strokes of the pump-pistonswill also effect the measurement of the gasolene. The fiuidpump is, aswill be apparent, submerged within the tank and forces the oil orgasolene to the carbureter without any chance for the escape of airladen with gasolene, as is the case where the oil is forced from thesupply-tank by forcing into said tank air under sufficient pressure todisplace the liquid. The strokes of the pump-pistons are governed by asuitable air-meter L, so that cooled liquid gasolene in small quantitiesand in definite proportions to the amount of measured air is lifted fromthe underground gasolene-tank O and without exposure is delivered to themixing-chamber or carbureter.

Each of the two cylinders c c of the pump has a piston and rod f. Arocking arm g is pivoted at g on a standard h, which rests on thecap-plate c and two link-bars i i are joined one at each end of saidrocking arm and connect the latter with each of said pump piston-rods.The rocking arm 9 is operated by a rod J, which connects with acam-track 7t, revolved by the shaft l of the air-meter L.

The air-meter L is of well-known construction and the movable partsrevolve in a case. The revoluble shaft Z at one end of the case projectsto the exterior, and mounted thereon is a ratchet-wheel m. A pawl mengages said ratchet-wheel. An endless grooved cam-track 7.; is 011 saidshaft or secured to the ratchetwheel. This cam-track has several inwarddepressions, (designated 7d.) The pump-opcrating rod J, which isattached by its lower end to the rocking arm g, has at its upper end asmall roller which takes in the endless groove of the cam 70. This rod Jis maintained in an upright position by a bar 71, jointed to the upperend of the rod and connecting it with a fixed standard 0. It will now beseen that the revolutions of the airmetershaft Z and endless cam-trackwill cause the inward depressions 7; on said cam-track to act on theroller of the pump-rod J and give it a slight up-and-down1no"ement,thereby causing the arm g to rock and the pumppistons f toreciprocate. The stroke of the pistons is slight and the movement slow.

Provision is made for regulating the stroke of the pistons by adjustingthe extent of the movement of the rocking arm g, and consists of alongitudinal slot 17 in one end of the arm, and a set-screw (1,connecting the lower end of the rod J in said slot at any desired part.It will be seen the set-screw q permits the lower end of the rod J to beshifted along the slot, and thereby alter the extent of the rockingmovement of said arm 9, and consequently the length of the stroke of thepump-pistons.

The carbureter E comprises a vertical cylinder having closed ends andthrough the wall of which enters the end of the small gasolene-pipe d. Alarger pipe 7 leads from the air-meter L and also opens into saidcylinder. A steam heating-pipe s enters the upper end of the verticalcylinder and extends downward through it and comes out at the lower endand then curves up at s to form a watertrap. I provide said steam-pipe.9 within the mixing-chamber or vertical cylinder E with an enlargedportion .9, so that the heating and gasifyin g area of the steam-pipe ismaterially increased. Vithin the cylinder and surrounding the steam-pipesis a saucer or ringshaped cup 1, large enough to fill the crosssectionof the cylinder, and thereby act as a diaphragm or division. This cup islocated just below the open end of the gasolene-pipe (1', so that theliquid gasolene discharging from said pipe will drip into saidring-shaped cup. The cup has holes or is notched at t, where itsurrounds the steam-pipe, and the liquid gasolene passes in smallstreams downward through the holes. The measured air which enters frompipe 0' must also pass downward through the small holes at, and thuswhile the heat volatilizes the gasolene the measured air mixes readilywith the vapor and the blendilwis effected in the lower chamber part ofthe vertical cylinder E.

The pipe u, leading from the mixer or carbureter, conducts the gas to asuitable holder (not shown) or directly to the burners.

Having thus described my invention, what I claim isl. The combination ofa gasolene main supply-tank placed underground where its contents Willbe kept uniformly cool; a small tank, C, also underground and on a levelwith the main tank; a pipe connecting the main tank and small tank andsupplying the latter with gasolene by gravity or natural flow; anair-meter; a gasolene-pump attached to said small tank and having thestroke of its piston governed by the said air-meter; a mixer orcarbureter; a pipe leading from the airmeter to said mixer; and a pipeleading from the gasolene-pump to the said mixer.

2. The combination of a gasolene-supply tank placed underground whereits contents will be kept uniformly cool; a carbureter; an air-meterhaving a revoluble shaft; an endless grooved cam-track carried by saidshaft; a small tank, 0, also underground and placed intermediate betweenthe main tank and earbureter; a gasolene-pump submerged in said smalltank; a pivoted arm connected with the piston of said pump; and a rodconnecting from said endless cam-track on the meter-shaft to the saidpivoted arm.

3. The combination of a gasolene-supply tank placed underground whereits contents will be kept uniformly cool; an air-meter havinga revolubleshaft; a double-cylindered gasolene-pump also underground and connectedwith said underground supply-tank; a rocking arm having a longitudinalslot and two links, one at each end connected with a different one ofthe pump-pistons; and a conneetion from the said slot in the rocking armto the revoluble shaft of the air-meter.

4. The combination of a gasolene main supply-tank placed undergroundwhere its contents will be kept uniformly cool; a carbureter; anainmcter; a small tank, 0, also underground and placed intermediatebetween the main tank and carbureter; a detachable cap-plate coveringthe top of the small tank; a pump -cylinder secured to the said capplateand projecting down into the small tank; and a piston in thepump-cylinder operated by the said air-meter.

5. In a carbureter, the combination with a main supply-tank, of a mixingor carburetin g chamber, a second tank intermediate said main tank andcarbureting-chamber and in communication therewith, a pump in saidintermediate chamber, an air-meter in com munication with saidcarbureting-chamber, and connections between said air-meter and saidpump to operate the latter.

6. In a carbureter, the combination with a main supply-tank, of a mixingor carbureting chamber, a second tank intermediate said main tank andcarbureting-chamber and in communication therewith, a double-cylinderedpump in said intermediate tank adapted to deliver a determined amount ofgasolene to the carbureting-chamber, an air-meter in communication withsaid carbureting-chamber, and adjustable connections between said meterand pump whereby the latter may be operated and its throw varied asdesired.

7. In a carbureter, the combination with a main supply-tank, of a mixingor carbureting chamber, a second tank intermediate said main tank andsaid carbureting-chamber and communicating therewith, a pump in saidsecond tank,a rotary air-meter in communication with saidcarbureting-chamber, connections between said air-meter shaft and saidpump to operate the latter, and means for locking said air-meter andpump-operating mechanism against backward movement.

8. In a carbureter, the combination with a main supply-tank, of a mixingor carbureting chamber, a second tank intermediate said main tank andsaid carbureting-chamber, a double-cylindered pump in said intermediatetank, a rocking arm to drive the pump-pistons, a rotary air-meter incommunication with said carbureting-chamber, a cam carried by the shaftof said meter, an adjustable connection between said cam and rockingarm, by means of which the latter is actuated and the pump is driven,and means to lock said meter-shaft and pump-operating mechanism againstbackward movement.

9. In a carbureter, the combination with a main supply-tank, of a mixingor carbureting chamber, a second tank intermediate said main tank andsaid carbureting-chamber, a double-cylindered pump in said intermediatetank, a rocking arm to drive the pump-pistons, a rotary air-meter incommunication with said carbureting-chamber, a cam carried by the shaftof said meter, an adjustable con-V nection between said cam and rockingarm by means of which the latter is actuated and the pump is driven, aratchet-wheel on said meter-shaft, and a locking-pawl en gaging saidratchet-wheel so as to lock said meter-shaft and pump-operatin gmechanism against backward movement.

10. In a carbureter, the combination with a main supply-tank, of amixing or carbureting chamber, a second tank intermediate said main tankand carbureting-chamber and in communication therewith, a pump in saidintermediate tank adapted to deliver a determined quantity of gasoleneto the mixingchamber, means for operating said pump, and means forsupplying air to said mixing-chamber.

11. In a carbureter, the combination with a main supply-tank, of amixing or carburetin g chamber, a second tank intermediate said maintank and carbureting-chamber and in communication therewith, a pump insaid intermediate tank, an air-meter in communication with saidcarbureting-chamber, means for operating said air-meter, and connectionsbetween said air-meter and pump to actuate the latter wherebydeterminate and propor tionate quantities of air and gasolene will bedelivered to the carbureting-chamber.

12. In a carbureter, the combination with a main supply-tank, of amixing or carbureting chamber, a second tank intermediate said main tankand carbureting-chamber and in communication therewith, a pump in saidintermediate tank, a rotary air-meter in communication with saidcarbureting-chamber, means for operating said air-meter, and ad*justable connections between said air-meter and pump to actuate thelatter, whereby determinate and proportionate quantities of air andgasolene will be delivered to the carbureting-chamber.

13. In a carbureter, the combination with a closed supply-tank, of apump submerged within said tank, a piston-rod for said pump extendingoutside of saidclosed supply-tank, a carburetingchamber in communicationwith said supply-tank, an air-meter to sup ply air to saidcarbureting-chamber, means for driving said air-meter, and connectionsbetween the air-meter and the said piston-rod to operate the pump. I

14:. In a carbureter, the combination with a carbureting or mixingchamber, of means for supplying oil and air to said chamber, asteam-pipe passing through said chamber, and a drip-cup orspraying-saucer carried by said steam-pipe and located below theentrance-ports of the oil and air supply pipe.

15. In a carbureter, the combination with a carbureting or mixingchamber, of means for supplying oil and air to said chamber, asteam-pipe passing through said carbureting or mixing chamber, and adrip-cup or spraying-saucer carried by said steam-pipe, said drip-cupbeing of such diameter as to fill the carbureting-chamber and beinglocated below the entrance-ports of the oil and air inlets.

16. In a carbureter, the combination with a carbureting or mixingchamber, of means for supplying oil and air to said mixing-chamber, asteam-pipe passing through said mixing-chamber, said steam-pipe havingan-enlarged portion within said chamber to increase the heating area ofthe pipe and a spraying-saucer or drip-cup carried by said enlargedportion.

17 In a carbureter, the combination with a carbureting or mixingchamber, of means for supplying oil and air to said mixing-chamber, anda steam-pipe passing through said mixing-chamber, said steam-pipe havingan enlarged portion within said chamber to increase the heating area.

In testimony whereof I affix my signature in the presence of twowitnesses.

CLARENCE M. KEMP.

Witnesses:

CHAPIN A. FERGUSON, CHARLES B. MANN, Jr.

